What absorbs at 1089 cm⁻¹ in an FTIR spectrum?
A band near 1089 cm⁻¹ can point to several functional groups. Below are the most likely assignments, ranked by how much published evidence supports each — every one traceable to literature (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 8 cited sources
Võimalikud funktsionaalrühmade määramised
| Funktsionaalrühm | Toetavad faktid | Tsiteeritud allikad | Kõrgeim usaldusväärsus |
|---|---|---|---|
| C-O single bond | 13 | 12 | 1,0 |
| Methoxy (OCH3) | 12 | 11 | 1,0 |
| Methacrylate | 12 | 11 | 1,0 |
| Acetate | 12 | 11 | 1,0 |
| Silicon-oxygen (Si-O) | 8 | 8 | 1,0 |
| Silicon (Si) | 6 | 6 | 1,0 |
| Phosphate (PO4) | 6 | 5 | 1,0 |
| Siloxane (Si-O-Si) | 3 | 3 | 1,0 |
| Hydroxyl (O-H) | 3 | 2 | 1,0 |
| Phosphorus | 3 | 2 | 1,0 |
| Water (H2O) | 2 | 2 | 1,0 |
| Alkyl C-H | 2 | 1 | 1,0 |
| Nucleic acid | 1 | 1 | 1,0 |
| Alkene (C=C) | 1 | 1 | 1,0 |
| Thiocarbonyl | 1 | 1 | 1,0 |
| Chlorine | 1 | 1 | 1,0 |
| Secondary amine | 1 | 1 | 1,0 |
| C n single bond | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| C c single bond | 1 | 1 | 1,0 |
| Metal oxygen | 1 | 1 | 1,0 |
| Acetyl | 1 | 1 | 1,0 |
| Sulfate (SO4) | 1 | 1 | 0,9 |
| Perchlorate | 1 | 1 | 0,9 |
| Carboxyl (COOH) | 1 | 0 | 0,8 |
Reiting kajastab kogunenud kirjanduslikke tõendeid, mitte ühte autoriteetset reeglit. Kinnitage alati oma proovi kontekstis.
Nende määramiste taga olev kirjandus
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Silicon-oxygen (Si-O) usaldusväärsus 1,0
“FTIR spectra showed peaks at 1089 and cm-1, 801 which corresponded to asymmetric and symmetric O-Si-O.”
Fabrication of Biogenic Silica Nanostructures from Sorghum bicolor Leaves for Food Industry Applications DOI: 10.1007/s12633-020-00379-4 -
Acetate usaldusväärsus 1,0
“The sharp band at 1089 corresponds The PVA used in this work were obtained in powder form to C-O stretching of acetyl group present on the PVA back from M/s.”
Bhajantri 等 - 2006 - Microstructural studies on BaCl2 doped poly(vinyl DOI: 10.1016/j.polymer.2006.03.054 -
Acetate usaldusväärsus 1,0
“We show that the PEG C O C peak (at 1089 is the main analytically valuable Received in revised form 17 January 2016 band in IR spectra of PEG-containing systems: it is narrow and highly intense, it is well distinguished 18 January 2016 Acce”
New versatile approach for analysis of PEG content in conjugates and complexes with biomacromolecules based on FTIR spectroscopy. DOI: 10.1016/j.colsurfb.2016.01.030 -
usaldusväärsus 1,0
“1118 stretching 1241 stretching C-O C-O 1089 stretching 1157 stretching”
El Bialy 等 - 2020 - Comparative Toxicological Effects of Biologically DOI: 10.2147/IJN.S241922 -
Silicon (Si) usaldusväärsus 1,0
“Thus, Si-O cm-1 asymmetrical stretching vibration corresponds to 1089 value of wavenumber, 1850074-4 February 12, 2018 13:40”
Huseynov 等 - 2018 - Fourier transform infrared spectroscopic study of DOI: 10.1142/S0217979218500741 -
Phosphate (PO4) usaldusväärsus 1,0
“cm-1 cm-1, ≈1230 837, and 805 Phosphate vibrations at and 1089 and backbone vibrations cm-1 cm-1 ≈1030 at and 765 were found to be sensitive to changes in hydration rather than (cid:1)(cid:2)(cid:3)(cid:1)(cid:4)(cid:5)(cid:6)(cid:7)(cid:8)”
Serec 等 - 2021 - Conformational Transitions of Double-Stranded DNA DOI: 10.3390/app11052360 -
Silicon (Si) usaldusväärsus 1,0
“3O except for having a logical features of uncoated Fe cm-1 4 peak at 1088.8 belongs to the asymmetry stretching much smoother surface and larger particle diameter (about vibration of Si-O-Si, indicated that SiO was successfully 2 600 nm) d”
Wang 等 - 2020 - Evaluation of Different Blood Circulating miRNAs f DOI: 10.1166/jnn.2020.17160 -
Phosphate (PO4) usaldusväärsus 1,0
“In the FTIR spectrum of B-V-PIL/W, the bands at 1089 and cm-1, 790 which are assigned to the vibration of P-O and W-O-W bonds, respectively approve immobilization 4034.”
Heteroployacid on the composite of boehmite and polyionic liquid as a catalyst for alcohol oxidation and tandem alcohol oxidation Knoevenagel condensation reactions DOI: 10.1038/s41598-022-20699-2
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